Daily Sunspot Evaluation
Observation Sheet Thursday, 15 October 1959
There is no typed record for this day. The values below were read by computer from the table on the sheet; when in doubt, see the drawing. Details →
- Number of groups (g)
- 11
- Number of spots (f)
- 49
- Relative number (R)
- 159
- Observer
- SG
- Reading
- all checks consistent
- File
- 19591015.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 3 | 13 | 14E | ||||
| 2 | H – 7 | 7 | 31E | ||||
| 3 | ? – 1 | 1 | 85E | ||||
| 4 | C – 5 | -16 | 25E | ||||
| 5 | E – 20 | -8 | 11E | ||||
| 6 | A – 1 | -12 | 11W | ||||
| 7 | B – 5 | -8 | 14W | ||||
| 8 | A – 2 | 1 | 72W | ||||
| 9 | A – 1 | 13 | 14W | ||||
| 10 | A – 2 | 30 | 50W | ||||
| 11 | A – 2 | 22 | 3W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.